Headquarters:

16740 Hardy StreetHouston, Texas 77032

800-877-6484Phone: (281) 443-3370

Fax: (281) 233-5190www.smithbits.com

2005 Smith International, Inc. All Rights Reserved.Printed in the U.S.A. 0905

SB2297 0905

S-Flo and X-Flo are trademarks of Smith International, Inc.V-Flo is a registered trademark of Smith International, Inc.

The new FH line of tungsten carbide insert (TCI) bits from Smith Bits is the latest addition to our proud history of engineering innovation and superior drilling performance. For over 100 years, Smith has provided customers with solutions to the toughest drilling challeng-es, and the FH series is the latest bit family to join this long line of outstanding achievers. FH bits combine high rates of penetration with the outstanding durability and reliability Smith Bits products are noted for. The technologically superior FH platform consistently provides the lowest possible cost per foot across a broad spectrum of demanding drilling applications.

The FH performance advantage arises from the four key elements designed and built into every FH bit:

1. Fast Hole Cutting StructureFH bits were developed using Smith Bits unique rock mechanics laboratory which is able to simulate a variety of elements in the rock/cutter interface.

- Precision engineered cutter and insert geometries provide superior ROP. - Maximum mechanical energy is applied to the formation.- Laboratory & field tested for enhanced durability and higher ROP.

2. Formation Hardy MaterialsFH bits are the latest example of Smith Bits Engineering and Technology groups relent-less pursuit of materials that will enhance the performance of our drill bits.

- Proprietary carbide technology provides significant increases in insert durability.- The proven performance of the Spinodal 2 bearing with silver-plated components ensures that FH bits will have unmatched bearing life.- The dual material elastomers in the patented Bullet seal provide superior protection for the bearing and enable the FH series of bits to attain the ultimate in reliability.

3. Field Honed ReliabilityFH bits are equipped with a precision-engineered combination of materials that work synergistically to provide unmatched performance.

4. Flexible Hydraulics OptionsThe FH series takes full advantage of the versatility of the Flex-Flo adaptive hydraulic system. - Efficient flow regimens optimize bottom hole cleaning.- Focused hydraulic energy ensures maximum ROP.

S-Flo (Standard Flow) In applications with a high percentage of solids in the mud and in abrasive formations, S-Flo uses three identical nozzles to allocate hydraulic energy to prolong bit life.

X-Flo (Cross Flow) The many variations of X-Flo allo-cate available hydraulic energy to improve penetration rates through dramatically increased impingement pressure need-ed for ultimate bottom hole cleaning.

V-Flo (Vectored Flow) V-Flo uses three precisely directed nozzles to allocate available hydraulic energy for improved penetration rates through superior cutting structure cleaning and efficient cuttings evacuation.

Contact your Smith Bits representative for more information that documents how FH technology will drive down your total drilling costs.

70% 75% 80% 85% 90% 95% 100%

FH

Competitor

7 7/8 FH Bits vs Competitor Bits % Seals Effective

The New FH Bits.Fast, Rugged and Reliable.

7 7/8 IADC 517-537From Smith Bits Drilling Records System October 2004 - July 2005